Roller for sugar-cane mills.



R. MITGH R R FOR SUGA MILLS.

A oATIoN FILED R. ,1910.

1,015,577, A f Patented Jan.23, 1912.

2 SHEETS-SHEET l.

R. MITCHELL.

ROLLER POR SUGAR GANE MILLS.

AAAAAAAAAAAAAAAAA PB.. 6, 1910.

1,015,577. 'Patented Jan.23,1912.

, 2 SSSSSSS SHEET Z.

ROBERT MITCHELL, 0F LONDON, ENGLAND.

ROLLER FOR SUGAR-CANE MIL-LS.

Specification of Letters Patent.

Application filed April 6, 1910. Serial No. 553,705.

To all w/Lom t 'may concern:

Be it lmown that I, ROBERT MITCHELL, of

the Sugar Machinery Manufacturing Com-v pany, a citizen of the United Kingdom of Great Britain and Ireland, and resident at 76 Elsham road, London, West, engineer, have invented certain new and useful Improvements in and Relating to Rollers for Sugar-Cane Mills, of .which the following is a specification.

This invention relates to improvements in rollers for sugar cane mills.

My present improvements are developments in the art and consist in forming-in any mannerthe face or body of the roller with a series of indentations of a square, rectangular, hexagonal or any other shape, except round indentations.'

In the drawings I have shown certain dierent shapes of indentations, for exam- Figure 1 illustrates a roller having square stepped indentations; Fig. 2 being a sectional view through the indentations. Fig. 3 a roller with hexagonal stepped indentations; Fig. 4 being a sectional view of the indentations. Fig. 5 a roller with square indentations similar to Fig. 1 but arranged differently; Fig. 6 being a sectional view through one of the indentations. Fig. 7 a roller with indentations of a trapezoidal shape; Fig. 8 being a sectional view through the indentations. Figs. 9, 10 and 11 are certain other designs of indentations. f

In Fig. 1, A shows square or rectangular indentations stepped thrice as shown at t Fig. 2. In Fig. 3, B shows hexagonal stepped indentations thrice stepped as shown at b Fig. 4. In Fig. 5 thrice stepped indentations C as shown at 0 Fig. 6; but with the indentations arranged differently to Fig. 1. In Fig. 7 thrice stepped indentations D as shown at Fig. 8, of a trapezoidal shape. Either or any one of the indentations may have at their base a cone such as e Fig. 9. Or the indentations may be formed in the face or body of the roller without stepping, that is to say something after the manner as,shown at f Fig. 10. The indentations such as shown at f Fig. l() may also have a cone such as g Fig. 11. Any other shape of indentations may be employed except round-and the indentations may have any number of steps and they may have cones at their base; or the cones may be dispensed with.

It is found by practical experience that the corners produced by indenting the face or body of the roller, bite the cane very effectively and no slipping of the cane occurs.

The rollers can be rotated in any direction that is to say clockwise or counterclockwise and they are equally 'effective when rotated in either direction.

Claim- 1. Rollers for sugar, mills provided with a plurality of polygon shaped indentations on the surface, each indentation being formed by a plurality of square cornered steps.

2. Rollers for sugar mills provided with a plurality of polygon shaped indentations on the surface, each indentation being formed by a plurality of square cornered steps and with convex bottom.

ROBERT MITCHELL.

Witnesses:

I-I. D. JAMESON, JAMES YATE JOHNSON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

Patented J al1. 23, 1912. A 

